Changing a Wheel - Disco 4

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Originally Posted by loanrangie

How does raising the COG increase stability and vice versa ?

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Balance point.

The 3 other wheel positions are sitting higher keeping the body closer to its centre point of balance.

If you lift from a lower position the other bags (same side other end and opposing corner in particular) contain less volume and as you lift the vehicle these corners can easily destabilise / rock / compress.

Keeping the suspension at full height reduces this.

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Originally Posted by Tombie

You guys do realise by lifting the vehicle to offroad height first - this is designed to remove some of the instability in the vehicle - it’s a safety measure.

Leaving the vehicle lower and lifting a corner increases instability and side loading, increasing odds of a problem.

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Agreed re stability. Plus it requires less jacking because the suspension is already closer to full extension, which you have to reach before the wheel leaves the ground.

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Originally Posted by Tombie

One resulted in a clean cut skin.
The other can result in a messed up pelt and hacked carcass....

The more apt quote would be “Do you want it done right and safe or do you want to take short cuts?”

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Dont need a rod to reel you in hey , where in this thread have i mentioned anything about jacking up a Disco or RRS , i actually dont have a problem in this regard its not rocket science . What i was interested was the small trolley jack mentioned in a post and in you jumped pertaining that we needed lessons in the Universe and everything . :eek2:

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Originally Posted by Fatso

Dont need a rod to reel you in hey , where in this thread have i mentioned anything about jacking up a Disco or RRS , i actually dont have a problem in this regard its not rocket science . What i was interested was the small trolley jack mentioned in a post and in you jumped pertaining that we needed lessons in the Universe and everything . :eek2:

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If the shoe fits mate, lace that bugger up and wear it.

I wasn’t responding to your post when I commented on lift before commencing using the jack (didn’t quote you) - I was posting based on previous posts where people commented “I don’t bother lifting the vehicle first”.

[emoji867]

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Originally Posted by DieselLSE

What a clever idea, Ferret. Thanks for sharing the specs. I've asked my engineering place to price up a couple for me out of mild steel. I figure two would make it so much easier. I'll also ask him about a batch price and perhaps set up a group buy for Melbourne members.

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This is what I have come up with. As per Ferret's specs except that the diameter is 22.2mm instead of 22.4 and I've increased the length by 20mm. Also the production version will have an 8mm hole a few mm in from the taper to make removal easier by simply inserting a screwdriver or similar if needed. After all, your hands will probably be a bit greasy making gripping the tube a bit difficult.
I'll put up a post in the group buy section. Pricing not confirmed but will be as near as dammit to $20ea pickup from Brighton, Victoria or $32 posted anywhere in Australia. No real need to order more than one unless you regularly do wheel changes for 4WD'ing, then I suppose having two or even four would be handy (this is what I intend doing).
For those who argue you don't really need the tool as you can manipulate the wheel height with the jack: you are, of course, quite correct particularly when changing a single wheel. But if you are rotating your wheels or swapping to an off-road set it's a lot easier to jack up either the whole car or one end or side at a time. This makes adjusting any particular axle height a bit problematic.

Edit: Group Buy setup here: https://www.aulro.com/afvb/group-buy...ml#post3046284

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Originally Posted by ramblingboy42

don't you think Pirelli scorpions subject to getting punctures and blowouts in the bush?

I know a lot of people on cattle stations in central Australia and they don't use Pirellis.

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I bet they don't drive Discoverys either ;)

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Originally Posted by Turtle60

Bunnings sell a king chrome 22m 6 point plastic coated deep impact socket. $20, perfect.

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Tried the Sidchrome 6 point version non impact and it’s tight like the 12 point like the nuts are 22.5mm with their silly tin covers.

My Bunnings didn’t have the Kingchrome impact option in individual sizes.

You mean like a 7/8s [emoji41] it’s 22.22mm

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Originally Posted by PerthDisco

Tried the Sidchrome 6 point version non impact and it’s tight like the 12 point like the nuts are 22.5mm with their silly tin covers.

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That’s the problem with the covers - they start to swell and end up 0.5mm over size - especially a problem if a garage has used an impact gun to remove.

You can also get 22.5mm 6 point impact sockets out of the US to remove damaged wheel nuts.

My wheel nuts on our last Defender (2010 Puma) didn't just swell, they were destroyed by a yob tyre "fitter" at the place I used to go to. Couldn't be bothered letting the gun stop before trying to get it on and totally trashed about a dozen nuts.
I always specifically state "no gun" and it was on the worksheet but he couldn't be bothered. It was only an "****** Land Rover" apparently...... he got the sack and they replaced the nuts. But if they can't supervise some of the idiots they employ that's their problem and they lost a customer.
Never had any trouble fitting a socket on the nuts of any vehicle if they're in good condition with no gun damage. I use an impact socket manually on the D4..... and I've forgotten what size it is! :)
AlanH.